Newport Scientific, Inc.'s HYGRODYNAMIC Division is a leader in the humidity sensing industry supplying dew point monitors, instrumentation, transmitters, and controllers. This division's products have used the Dunmore Hygrosensor successfully for many years. Its customer base includes plastic dryer manufacturers, plastics manufacturers, hospitals, and several nationally recognized laboratories, among others. Customers have found ways to use our products in many varied applications, too numerous to name, wherever it is important to know factors regarding humidity.

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Newport Scientific, Inc.'s, SUPERPRESSURE Division and product line was founded in 1923 by the American Instrument Company (AMINCO) and includes such items as Diaphragm Gas Compressors, Smoke Density Chambers, and Supercritical Fluid Extraction Systems, to name a few. This division's name has become synonymous with high-pressure equipment expertise, matchless quality, and unsurpassed reliability. SUPERPRESSURE products can be found in virtually any research lab, university, manufacturing plant, nuclear facility, as well as defense and aerospace companies.

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AMINCO Silver Spring, Maryland Plant

Superpressure Metal Fabrication Plant

Military Aircraft Hose Test Device

Typical Pilot Plant System

University of Maryland Research Lab

Humistat Model 3205

Nuclear Compressor in Process shipped to customer in 2007

Our Jessup, Maryland Facility

The SUPERPRESSURE and HYGRODYNAMICS divisions of Newport Scientific trace their roots to the American Instrument Company (AMINCO) which opened for business in Silver Spring, Maryland, in 1919. When high-pressure operations became of interest to the chemical industry, AMINCO’s ‘SUPERPRESSURE’ products fulfilled the need. SUPERPRESSURE equipment could be found in laboratories, pilot plants, and full-scale production plants of the leading chemical manufacturers throughout the world. The development of nuclear technology also found use for SUPERPRESSURE equipment, as did the missile and aerospace programs. Around 1970, working with a team of engineers from the National Bureau of Standards, AMINCO developed and began selling a Smoke Chamber for testing the smoke generating characteristics of burning materials. The SUPERPRESSURE division eventually took on the production of this equipment. Over the years, this product line has been serving the aviation and building materials fire testing industry. In the 1970’s, AMINCO was acquired by Baxter-Travenol. Over the years several divisions were splintered off as separate companies, but eventually, SUPERPRESSURE, Inc. and HYGRODYNAMICS, Inc. were merged and became two divisions of the privately held Newport Scientific, Inc. company.The HYGRODYNAMICS product line has benefited from massive strides in electronics technology over the decades. While the original Dunmore-type sensor is still in use with most HYGRODYNAMICS products, new electronic techniques have improved the stability and longevity of all the systems. Modern plastics molding technology benefits from HYGRODYNAMICS’ dew point monitors or kits. Our products are a major player in the industry of cost-effective solutions for checking plastics within the drying equipment.